Roche ($RHHBY) is planning to make a major splash in China, looking to spend 450 million Swiss francs ($466.2 million) to build a diagnostics operation in Suzhou. The new facility will employ more than 600 people once it comes online in 2018, Roche said, focusing on manufacturing diagnostic tests for the growing Asian market. The news comes weeks after the Swiss giant unveiled a plot to spend $1.8 billion on a new research center at its Basel headquarters. More